diff --git a/.travis.yml b/.travis.yml
index d410ef62..6d41b9a3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,3 +6,4 @@ addons:
 before_script:
   - psql -c 'create database travis_ci_test;' -U postgres
 sudo: false
+bundler_args: --jobs=1